Masked Mexican wrestler and superhero Santo plays private investigator, called in by government officials to investigate the mysterious vandalism of a high profile painting. With the help of his two counterparts, he uncovers the truth behind an art collector/chemist who may be murdering female models.
| Writing | José Luis Navarro | Writer |
| Directing | Rafael Romero Marchent | Director |
| Writing | Rafael Romero Marchent | Writer |
| Costume & Make-Up | Carmen Díez | Assistant Makeup Artist |
| Art | Luna Mateos-Mengíbar | Property Master |
| Directing | May Marqués | Assistant Director |
| Production | Eduardo Esquide | Production Assistant |
| Production | Joaquín Mortera | Executive Producer |
| Production | Manuel Torres | Producer |
| Camera | Ramón Perdiguero | Assistant Camera |
| Costume & Make-Up | Mariano García Rey | Key Makeup Artist |
| Art | Aurelio Gallego | Assistant Set Decoration |
| Camera | María Delgado | Still Photographer |
| Camera | Godofredo Pacheco | Director of Photography |
| Editing | Antonio Gimeno | Editor |
| Art | Jaime Pérez Cubero | Set Decoration |
| Costume & Make-Up | Antonia López | Hairstylist |
| Editing | Mercedes Gimeno | Assistant Editor |
| Crew | José Luis Chinchilla | Master at Arms |
| Crew | Luis Domínguez | Generator Operator |
| Costume & Make-Up | Isabel Perales | Seamstress |
| Camera | Antonio Gómez | Assistant Camera |
| Editing | María Luisa López | Assistant Editor |
| Art | Fernando Quejido | Set Designer |
| Directing | Carmen Salas | Script Supervisor |
| Sound | Gregorio García Segura | Music |
| Camera | Domingo Solano | Camera Operator |
| Directing | Mariano Canales | Assistant Director |
